Question: When was Ann Dunham married to Lolo Soetoro?
Paraphrase: What was the date on which Ann Dunham married to Lolo Soetoro?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q766106 p:P26 ?s . ?s ps:P26 wd:Q4115068 . ?s pq:P580 ?value}